Anderson shelters were half buried in the ground with earth gathered on top to protect them from the bomb blasts. They were made from six corrugated metal sheets bolted together at the top,with steel plates at either end . At the entrance was protected by a steel shield and earthen blast wall. The government gave out Anderson shelters to the poor. The men who earn £5 per week could buy an Anderson shelter for only £7. By September 1939 one and a half million Anderson shelters were built across Britain. The shelters also tended to flood and were very uncomfortable to sleep inside. Anderson shelters were cold smelly and the citizens inside were very squashed.